Catastrophic Accident

The LE MANS DISASTER occurred during the 1955 of Le Mans motor race, when a crash caused large pieces of racing car debris to fly into the crowd. Eighty-three spectators and driver Pierre Levegh died at the scene and 120 more were injured in the most catastrophic accident in motorsport history.

 Here you have a link to see a video about how it happened https://www.youtube.com/watch?v=RMoh5hZAaZk 

Finally,I leave you a graphic showing why and how this accident happened.